However, it is far from clear that Israel's political leadership is yet ready to give up the separation of forces that has been a key element on its southern front for some 30 years.

BBC: Sinai attack marks step change in border violence

Another element of the deal is the supply of helicopters: 30 Blackhawks and 33 Hueys.

ECONOMIST: Colombia

They are no longer prepared to sign up to 20- or 30-year franchises as long as a key element of risk, the state of the track, remains outside their control.

ECONOMIST: A better way to run a railway